"Safety Lab Symbols"

This is a generic prohibition sign or symbol.

prohibited to anything that it have to be prohibited to

Symbol for a highly reactive material.

A very reactive chemical or substances

Symbol for nonpotable water or no drinking water.

This water is to not be use

This is the hazard symbol for flammable substances.

Flammable to blow up and cause fire

This is the US Army symbol for a radiation WMD or nuclear weapon.

A nuclear weapon has set off



http://chemistry.about.com/od/healthsafety/ig/Laboratory-Safety-Signs/index.03.htm (8-22-11)